All questions
- Which of the following statements in not correct? (1) Pyramid of numbers in a grassland ecosystem is upright. (3) Pyramid of biomass in sea is generally upright 2
- The first stable product of CO2 fixation in sorghum is: (1) Phosphoglyceric acid (2) Pyruvic acid (3) Oxaloacetic acid (4) Succinic acid Oxaloacetic acid :: The first stable product of CO2 fixation in sorghum is: Oxaloacetic acid 1
- Which of the following stages of meiosis involves division of centromere? (1) Telophase II (2) Metaphase I (3) Metaphase II (4) Anaphase II Anaphase II:: Anaphase II stages of meiosis involves division of centromere 1
- Match List -I with List - II. (a) Lenticels (i) Phellogen Correct option: (2) (iii) (i) (iv) (ii) 2
- The amount of nutrients, such as carbon, nitrogen, phosphrous and calcium present in the soil at any given time, is referred as: Standing state :: The amount of nutrients, such as carbon, nitrogen, phosphrous and calcium present in the soil at any given time, is referr... 1
- The site of perception of light in plants during photoperiodism is: (1) Leaf (2) Shoot apex (3) Stem (4) Axillary bud The site of perception of light in plants during photoperiodism is Leaf 1
- Which of the following plants is monoecious? (1) Cycas circinalis (2) Carica papaya (3) Chara (4) Marchantia polymorpha chara:: Chara is monoecious plant 2
- Plants follow different pathways in response to environment or phases of life to form different kinds of structures. Plasticity :: Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This abil... 1
- Which of the following algae produce Carrageen? (1) Blue-green algae (2) Green algae (3) Brown algae (4) Red algae 4) Red algae Red algae algae produce Carrageen 2
- DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as: (1) Bright blue bands (2) Yellow bands (3) Bright orange bands 2
- During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out: (1) Polysaccharides (2) RNA (3) DNA (4) Histones 3} DNA is the correct 2
- Inspite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival? (2) Resource partitioning is correct option 2
- A typical angiosperm embryo sac at maturity is: (1) 8-nucleate and 8-celled (2) 8-nucleate and 7-celled (3) 7-nucleate and 8-celled (4) 7-nucleate and 7-celled (2) 8-nucleate and 7-celled is correct option 2
- Gemmae are present in: (1) Some Liverworts (2) Mosses (3) Pteriodophytes (4) Some Gymnosperms Some Liverworts option 1 Some Liverworts is correct 2
- Match List - I with List - II. (a) Cohesion (i) More attraction in liquid phase option 1 is correct (1) (ii) (iv) (i) (iii) 2
- Diadelphous stamens are found in : (1) China rose and citrus (2) China rose (3) Citrus (4) Pea (4) Pea Diadelphous stamens are found in pea 1
- The production of gametes by the parents, formation of zygotes, the F1 and F2 plants, can be understood from a diagram called: (1) Net square (2) Bullet square (4) Punnett square is the correct option 2
- Genera like Selaginella and Salvinia produce two kinds of spores. Such plants are known as (1) Heterosporous (2) Homosorus (3) Heterosorus (4) Homosporous (1) Heterosporous is the correct option 2
- The factor that leads to Founder effect in a population is : (1) Genetic drift (2) Natural selection (3) Genetic recombination (4) Mutation Genetic drift :: 1)Genetic drift is correct option 2
- The term used for transfer of pollen grains from anthers of one plant to stigma of a different Xenogamy is the correct option (2) Xenogamy 2
- Which of the following is an incorrect statement? (1) Nuclear pores act as passages for proteins and RNA molecules (2) Mature sieve tube elements possess as conspicucous nucleus and usual cytoplasmic organelles. is the correct option 1
- Mutations in plant cells can be induced by: (1) Zeatin (2) Kinetin (3) Infrared rays (4) Gamma rays Gamma rays Correct option is 4 ) Gamma rays 2
- Consider the following statements: I. Higher the taxa, more are the characteristics that members whithin the taxon share. (4) Both I and II are false 2
- Which of the following taxonomic categories are correctly matched to their standard termination of names with respect to biological classification of plants? (2) I, II, III is correct option 2